is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away from Earth in the constellation Ursa Major. M101 is a large galaxy, with a diameter of 170,000 light-years. By comparison, the Milky Way has a diameter of 100,000 light years. It has around a trillion stars, twice the
Over the last year of using my SynScan GOTO controller, I’ve noticed that the ESC button doesn’t always work as expected. Somehow I lived with it limitations. Last time the left Ra button, also began to fail and did not always connect. I could live with it for some time
Also known as Caldwell 14 or open clusters NGC 869 and NGC 884, ( often designated h Persei and χ Persei, respectively), which are close together in the constellation Perseus. Both visible with the naked eye, NGC 869 and NGC 884 lie at a distance of 7,500 light years. There
At first impression, the AutoStakkert user interface does not seem easy to use. However, after getting to know the key options and understanding how the program works, its interface not more to be a secret. We will go through the stacking procedure, processing sample of Moon light frames, which I
Is a double star designated Beta Cygni (β Cygni, abbreviated Beta Cyg, β Cyg). Beta Cygni is about 415 light-years (127 pc) away from the Sun. When viewed with the naked eye, Albireo appears to be a single star. However, in a telescope it resolves into a double star consisting
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Astrophotography by Dariusz Krzempek
You will know half of the
Every day, a very strong west
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